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Radon Levels in Pacific County, Washington

Zone 3Lower predicted potential943 square miles · 3 bordering counties

What this means for you

  • Your area: EPA rates Pacific County Zone 3, the lowest of its three radon zones. That is a prediction for the whole county, and homes with elevated levels occur in all three zones.
  • Local tests: Of 3 radon tests reported to CDC for Pacific County (2020), 0.0% were at or above 4 pCi/L, EPA's action level.
  • Your home: The only way to know your home’s level is to test it.

pCi/L (picocuries per liter) is the unit radon is measured in. EPA recommends fixing a home at 4 pCi/L or above, its action level.

In 2020, 0.0% of the radon tests reported to CDC for Pacific County, Washington came back at or above the EPA action level of 4 pCi/L, and the median result was 0.2 pCi/L. EPA's Map of Radon Zones places the county in Zone 3, lower predicted potential. Radon levels vary from home to home, so only a test measures the level in yours.

Predicted: EPA radon zone

EPA Zone 3: lower predicted potential

EPA predicts an average indoor of less than 2 pCi/L (less than 75 Bq/m³) across the county as a whole.

This is a county-level geologic prediction. It is not a measurement of any address, and houses with elevated radon are found in all three zones.

USGS geologic potential: High across 97% of the county's land area

Predicted: EPA Map of Radon Zones

Measured: tests reported to CDC

Radon tests reported for Pacific County, 2020

Tests reported
3
At or above 4 pCi/L
0.0%
Median result
0.2 pCi/L
Reported results by concentration band, Pacific County, 2020
Under 2 pCi/L: 100%2 to 4 pCi/L: 0%4 pCi/L and above: 0%

Of 3 pre-mitigation tests reported to CDC, not homes in this area. CDC publishes the share in each band, not a count per band, so the per-band counts in the table are calculated by Radon411 and rounded to add up to the published total.

Reported results by concentration band, Pacific County, 2020: data table
Result bandTests Calculated by Radon411Share Measured
Under 2 pCi/L3100.0%
2 to 4 pCi/L00.0%
4 pCi/L and above00.0%

Distribution of tested buildings, not this house. People testing before a sale, or because they suspect a problem, are over-represented in any reported testing data.

Measured: CDC tracking data. Figure above: 2020. Measured data period: 2008 to 2020 (every CDC figure on file).

Pacific County, In figures

Pacific County in figures

What the published data says about Pacific County, in words. A zone and a share of tests describe an area, never the level in any one home.

    • Predicted

      Predicted

      EPA places Pacific County in Zone 3, lower predicted potential, as it does 17 other counties of Washington's 39.

      Of the 3 bordering counties, EPA places Grays Harbor County, Lewis County and Wahkiakum County in Zone 3.

  • Reported tests

    Measured

    CDC has annual figures for Pacific County for 6 years, 2014 to 2020. In 2020, 0.0% of 3 reported tests were at or above 4 pCi/L.

  • Local record

    Washington's radon program is the Radon Program, run by Washington State Department of Health; its contacts are under Local resources.

    The county's largest incorporated places are Raymond, South Bend and Long Beach; the figures here cover them as part of the county.

Pacific County, Reported testing

Reported testing over time

Measured
Reported radon test results by year, Pacific County, pCi/LLogarithmic scale: each step up the axis multiplies the level, so the median and the single highest result can share one chart. The darker gridline is EPA's action level, 4 pCi/L.
Median reported resultHighest reported result

No figures are published for 2018. The axis keeps the space for the missing year and the line is not drawn across it.

Reported radon test results by year, Pacific County, pCi/L: data table
YearMedian reported resultHighest reported resultShare of tests at or above 4 pCi/L
20141.1 pCi/L1.7 pCi/L0.0%
20150.1 pCi/L0.1 pCi/L0.0%
20160.1 pCi/L0.1 pCi/L0.0%
20170.9 pCi/L1.3 pCi/L0.0%
20190.3 pCi/L0.3 pCi/L0.0%
20200.2 pCi/L0.3 pCi/L0.0%

What these figures count

Every percentage here is a share of radon tests reported to CDC for Pacific County in 2020. It is not a share of homes in Pacific County, and it is not a random sample: it counts only the tests people chose to run and that were reported.

The shares and the median are calculated from pre-mitigation tests (3 for 2020).

Pacific County, Comparison

How Pacific County compares

Measured

Pacific County's own published CDC figures beside those of the counties that border it, for the same period.

Share of reported tests at or above 4 pCi/L

Measured

2020, highest first. Each county’s own published CDC figure.

  1. Lewis CountyWA10 tests70.0%
  2. Grays Harbor CountyWA9 tests0.0%
  3. Pacific CountyThis page3 tests0.0%
  4. Wahkiakum CountyWA1 test0.0%

Median reported result

Measured

2020, highest first. Each county’s own published CDC figure.

  1. Lewis CountyWA10 tests15.6 pCi/L
  2. Grays Harbor CountyWA9 tests1.3 pCi/L
  3. Pacific CountyThis page3 tests0.2 pCi/L
  4. Wahkiakum CountyWA1 test0.1 pCi/L

Each figure is that county’s own published CDC figure for 2020, counting radon tests reported to CDC, not homes. Pacific County is this page. Nothing is averaged or combined across counties. The test count beside each county is CDC’s published number of pre-mitigation tests behind its figures. Figures from few tests can swing widely from year to year. Every Washington county’s own figure is in the Washington county table.

CDC publishes this figure only for counties here, so there is no state or national number to compare Pacific County, Washington with.

Pacific County, Bordering counties

Counties bordering Pacific County

Calculated by Radon411

3 counties share a boundary with Pacific County, computed from Census county geometry. Radon potential follows geology rather than county lines, so a bordering county’s report can be worth reading alongside this one.

Pacific County, Local resources

Local resources in Washington

Who to ask in Washington: the state's radon program, test kits and professionals.

Radon Program

Washington State Department of Health

Washington’s radon program answers questions about testing, mitigation and the rules where you live.

Phone
360-236-3200
Email
doh.radon@doh.wa.gov
Visit the program's page(opens in a new tab)

Test kits

The program says: We have a limited supply of free radon test kits.

Radon professionals

No professionals are listed in Washington yet. The state program can point you to registered testers and mitigators.

See the Washington directory

Pacific County, Cities and towns

Cities and towns in Pacific County

The radon figures on this page are for Pacific County as a whole. They do not differ by city or town.

  • Raymond
  • South Bend
  • Long Beach
  • Ilwaco

4 incorporated places, as listed in the U.S. Census Bureau’s 2020 place reference files.

Pacific County, Questions

Questions about radon in Pacific County

Common questions8 questions, answered from the figures above

Are radon levels high in Pacific County?

In 2020, 0.0% of the radon tests reported to CDC for Pacific County, Washington were at or above 4 pCi/L, and the median reported pre-mitigation result was 0.2 pCi/L. That is a share of reported tests, not of homes. EPA places Pacific County in Zone 3, lower predicted potential, a predicted average indoor screening level less than 2 pCi/L. Homes with elevated levels occur in all three zones, so the figures describe the area, not your house. Testing is the only way to know the radon level in a specific building.

What a radon level meansRadon in Washington

How do I get a radon test in Pacific County?

EPA says you can test your home yourself or hire a qualified radon test company, and that either approach takes only a small amount of time and effort. No certified tester listed on Radon411 names Pacific County as a service area yet. The Washington radon program is the place to ask about certified testers and any test kit offer it runs.

How to test a homeTest kits comparedFree and low-cost kits by stateWashington radon program

Who does radon mitigation in Pacific County?

Radon411 has no certified mitigators listed for Washington yet. EPA recommends having a qualified contractor fix a home with a radon problem, because lowering high radon levels takes technical knowledge and special skills, and some states require the work to be done by a licensed or certified professional. Your state radon program is the place to check whether Washington requires one.

How radon mitigation worksWhat mitigation costsWashington radon program

What EPA radon zone is Pacific County in?

EPA places Pacific County, Washington in Zone 3, which EPA describes as lower predicted potential for the area. A zone is a prediction for the whole county and never determines whether a particular home should be tested. EPA recommends testing every home regardless of zone.

Should I test my home in Pacific County?

Yes. Testing is the only way to know the radon level in a specific building. EPA recommends fixing a home when the radon level is 4 pCi/L or higher. EPA recommends considering a fix when the level is between 2 and 4 pCi/L. How to test a home.

When is the best time of year to test?

EPA says short-term tests stay in the home from 2 to 90 days and that all radon tests should run a minimum of 48 hours; long-term tests stay more than 90 days. EPA's guides do not name a best season: they say radon levels tend to vary from day to day and season to season, so a long-term test is more likely than a short-term test to tell you the year-round average.

What does it cost to test?

EPA's Citizen's Guide calls testing easy and inexpensive, and EPA's Home Buyer's and Seller's Guide says passive short-term and long-term devices are generally inexpensive, while active devices may cost more. No national average price is published for this, so Radon411 does not give one. What testing costs.

Which counties border Pacific County?

Pacific County borders 3 counties, derived from Census county geometry. Radon potential follows geology rather than county lines, so a bordering county's report can be relevant.

What these figures mean if you own, buy, sell or rent

The reported-test figures on this page describe Pacific County, Washington in 2020. They describe tests other people carried out in other buildings, and none of them measures yours.

  • If you own your home

    Test the lowest lived-in level; a short-term kit screens in days, a long-term kit reflects the year.

    How to test a home
  • If you are buying

    Ask for past results and any system's post-mitigation test, and test during the sale.

    Buying a house: radon guide
  • If you are selling

    Testing before you list puts the timing in your hands; disclosure rules differ by state.

    Selling a house: radon guide
  • If you rent, or rent out a home

    A tenant can test; a fix is the owner's to make, and duties differ by state.

    Radon in rental homes

How long a test has to run, under what conditions, and what EPA says a result means: the testing standard, in full.

Pacific County, Products

Testing and mitigation products

Whatever the figures for Pacific County show, only a test tells you about one home.

Pacific County / Next steps

What to do next

Informational. Follow EPA guidance. EPA says all radon tests should be taken for a minimum of 48 hours, with windows and doors closed from 12 hours before a short-term test.